Token data theft and deletion via unescaped metadata
Published Jul 1, 2022 · Updated Apr 23, 2025
Stored XSS in Canarytokens allows remote attackers to run JavaScript when a token creator later opens the triggered-token history page. The templates/history.html view inserts additional_info keys and joined values without HTML escaping, allowing trigger metadata to become markup; the fix applies the Jinja escape filter to both outputs. Exploitation requires discovery of an HTTP token URL and a later history-page visit by its creator, and access is limited to that token.
Summary
What happened
Stored XSS in Canarytokens allows remote attackers to run JavaScript when a token creator later opens the triggered-token history page. The templates/history.html view inserts additional_info keys and joined values without HTML escaping, allowing trigger metadata to become markup; the fix applies the Jinja escape filter to both outputs. Exploitation requires discovery of an HTTP token URL and a later history-page visit by its creator, and access is limited to that token.
The record
- CVE
- CVE-2022-31113
- Published
- Jul 1, 2022
- Updated
- Apr 23, 2025
- Vendor
- Thinkst Applied Research
- Product
- Canarytokens
- Classifications
- CWE-352, T1203
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 1, 2022CVE publishedPublication date reported by the CVE source.
- Apr 23, 2025Record updatedLatest update available in the CVE record.
Exploitability
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- Affected versionversion=Commits prior to dc378957bc28a6f3b5a8d7217b0605d81111f090
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What is affected?
Published CVSS scores
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Attacks
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Technologies
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Your stack
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